Because this bench has a height of only 14 cm in its lowest position when not placed in-ground, it is easy to position a car on it. The optional R10 Drive-On Ramp allows cars with little ground clearance, such as exotic sportscars, to be placed on the bench. This frame machine is compatible with all UnoLiner accessories. The CRS4000-RO set includes an F40 Bench Frame with an L30 Scissor Lift, 4x C10 Quick-Lock Universal Chassis Clamps. 4x B10 Bench Adapters, 4x H10 Wheel Stand, 1x P10 Draw Aligner Pulling Tower, and 1x F1030 Bench Height Set.